24/7 protection
A physical barrier blocks mosquito access to catch basins around the clock, preventing egg-laying in key breeding sites and continuously stopping the breeding cycle at its source.
Our solution
Pesticide-free mosquito control for city catch basins.
The ZikaSeal barrier
ZikaSeal is a science-backed innovation that provides a safe, pesticide-free and eco-friendly solution for controlling mosquito populations in cities. Developed through interdisciplinary research at the University of Copenhagen, it targets catch basins, one of the primary urban breeding sites for mosquitoes such as Aedes albopictus.
How it works
ZikaSeal is a physical barrier designed to fit within catch basins, blocking mosquitoes from accessing standing water while letting water flow through. Larvicide and insecticide treatments have to be repeated throughout the season, and repeated insecticide use can promote resistance. ZikaSeal offers a long-term, sustainable alternative with minimal maintenance.
Two species, one barrier
ZikaSeal is a physical seal, not a species-specific treatment. It sits beneath the grate and closes the drain shaft, so nothing passes in either direction. All openings in the device are below 1.0 mm.
Our efficacy testing at EID Méditerranée was carried out on Aedes albopictus, the Asian tiger mosquito. Culex pipiens, the principal vector of West Nile virus, is a larger-bodied mosquito and dominates European storm drains.
EID Méditerranée’s assessment is that a species-specific study would be required to demonstrate this formally, but that based on the morphology of the two species and the size of the openings in the device, it is highly likely that ZikaSeal is also effective in preventing adult Culex pipiens from passing the barrier — and probably most other European urban mosquito species.
ZikaSeal test results
ZikaSeal blocks 99% of mosquito traffic to and from the catch basin.
Independently tested by EID Méditerranée, Montpellier, report June 2026. The full report is available below.
The study has two limitations, stated in the report itself: it did not assess whether the device stays watertight over time, and it did not assess whether the device affects the drain’s absorption capacity under heavy rain.
Mosquitoes trapped under the ZikaSeal cannot pass through the prototype and reach the upper part of the experimental device.EID MéditerranéeRead the full report
Prioritizing catch basins: a risk model in development
Alongside the barrier, we are developing a satellite-based risk model to help municipalities, utility companies and urban planners decide which catch basins to protect first, instead of treating thousands of them uniformly. It is in development and not yet a validated operational tool.
In our ESA Kick-Start project, which ran from March to August 2026 with Monaco and Graz as pilot cities, the model reached proof of concept. A demonstration built on data from Montpellier, France, shows what such a risk map looks like; it is a demonstration, not an operational risk forecast.
Source for the ESA project: ESA Business Applications, project “ZikaSeal”.
What the model is being developed to do:
- Identify the catch basins with the highest risk of mosquito breeding
- Support stepwise rollouts based on data, not guesswork
- Work alongside existing GIS and maintenance systems
- Support green, long-term urban planning
Want to see how the model could be adapted to your city? Contact us for a demonstration.
Why use ZikaSeal?
A sustainable alternative to traditional pesticide-based methods, addressing their key shortcomings.
Cost effective and time saving
A long-term barrier that needs minimal maintenance once installed, eliminating the cost of larvicide and the labour-intensive reapplication required in every drain throughout the mosquito season.
Uninterrupted water flow
Designed to let rainwater, leaves and debris pass through freely, so the catch basin keeps doing its job.
Independently tested
ZikaSeal blocks 99% of mosquito traffic to and from the catch basin. Independently tested by EID Méditerranée, Montpellier, report June 2026.
Built for climate resistance
Engineered to withstand extreme weather: it accommodates backflow during heavy rain and flooding, and reduces odour nuisance during droughts.
Eliminates chemical dependence
Traditional control relies heavily on pesticides, which can be environmentally harmful. ZikaSeal removes the need for repeated applications, providing a safer, greener alternative.
How to buy ZikaSeal
The stainless steel mounting unit is installed once and stays in place for years. The barrier insert in it is inspected by your staff and replaced when debris or substances such as paint, lime or asphalt have affected it, which takes about five minutes on site.
- Step 1Needs assessmentWe go through your catch basin types, drain geometries and cleaning routines with you.
- Step 2QuoteYou receive a quote for your catch basins, setting out exactly what the price and the subscription include.
- Step 3OrderThe units are designed to fit your catch basins and manufactured in Denmark.
- Step 4Delivery and installationDelivered from Denmark and installed by your own operational staff or local contractors. No specialised tools are needed.
- Step 5ServiceYour staff inspect the installations and record each inspection in the ZikaSeal app. Replacement barrier components are included in the subscription.